Is there a way to rig another character to have the same weight paint?
https://www.reddit.com/r/blenderhelp/comments/3uot2q/copy_bone_weights_to_another_object/
That looks like your issue. I googled &quot;copy weight paint blender&quot; .
specifically
Go to 'Weights'&gt;'Transfer Weights' from the menu to the left of [Weight Paint]